WO2020035492A1 - Method and system for processing organic waste - Google Patents
Method and system for processing organic waste Download PDFInfo
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- WO2020035492A1 WO2020035492A1 PCT/EP2019/071723 EP2019071723W WO2020035492A1 WO 2020035492 A1 WO2020035492 A1 WO 2020035492A1 EP 2019071723 W EP2019071723 W EP 2019071723W WO 2020035492 A1 WO2020035492 A1 WO 2020035492A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- organic waste
- slurry
- liquid
- solid matter
- solid
- Prior art date
Links
- 239000010815 organic waste Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000007787 solid Substances 0.000 claims abstract description 36
- 238000002309 gasification Methods 0.000 claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 26
- 239000003921 oil Substances 0.000 claims description 18
- 235000019198 oils Nutrition 0.000 claims description 17
- 239000011343 solid material Substances 0.000 claims description 15
- 238000005345 coagulation Methods 0.000 claims description 9
- 230000015271 coagulation Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 239000004006 olive oil Substances 0.000 claims description 5
- 235000008390 olive oil Nutrition 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 2
- 230000016615 flocculation Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 10
- 238000000605 extraction Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 240000007817 Olea europaea Species 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000004668 long chain fatty acids Chemical class 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229930003935 flavonoid Natural products 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- NRNCYVBFPDDJNE-UHFFFAOYSA-N pemoline Chemical compound O1C(N)=NC(=O)C1C1=CC=CC=C1 NRNCYVBFPDDJNE-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
- 239000010463 virgin olive oil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
- C10J2300/0923—Sludge, e.g. from water treatment plant
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0926—Slurries comprising bio-oil or bio-coke, i.e. charcoal, obtained, e.g. by fast pyrolysis of biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1246—Heating the gasifier by external or indirect heating
Definitions
- the invention regards a method and system for processing organic waste.
- One of the essential problems for establishing a sustainable society for human beings without destroying the material circulation system on the limited earth, is to create renewable clean energy which does not use an exhaustible resource such as fossil fuel or uranium or destroy the resource environment. That is, there is a demand for renewable energy which discharges a small amount of harmful substances when being converted to effective energy such as electricity and heat so as to be used by human beings and which is produced by using permanently usable energy sources such as sunlight, wind power, water power, natural steam, and biomass. Practical use of these energy sources is increasing because of their attractive characteristics. However, in any case, there are various inherent problems concerning the final costs.
- NPL 1 organic waste carbonizing system
- PTL 1 charcoal syngas production system
- Olive Mill Waste is the liquid (slurry) waste product from the production of olive oil. Generally, a result of a second extraction process following the production of virgin olive oil.
- the OMW contains long chain fatty acids in the form of lignin and tannins, from which the OMW gets its dark colour. Most importantly the OMW is rich in phenols and flavonoids. In many cases these compounds become
- OMW Much of the OMW is dumped to landfill or discharged to sea. Others store the OMW in shallow lagoons where moisture is evaporated over time and the resulting dry material is then spread in the olive groves. Some have used anaerobic digestion techniques, where the OMW is significantly water down, but the retention time for digestion is very long, 4 to 6 months, requiring very large and costly systems.
- Incineration is both difficult in relation the amount of water, and once burnt, the flue gas is toxic and requires extensive cleaning before release to the atmosphere.
- the object of the invention is to provide a method and system for processing organic waste, which results in both usable water and material usable for fuel, with a low or nearly no amount of residue waste to be deposited or handled.
- a method for processing organic waste comprises two steps, where step one comprises separating water from the organic waste to produce water, slurry and solid matter, and step two comprises gasification of the slurry.
- a system for processing organic waste and generate energy comprises in one embodiment a screw-press solid separator adapted for receiving the organic waste and expel liquid from the organic waste to produce water, slurry and solid matter, and a multi-stage gasifier for gasification of the slurry and solid matter.
- the organic waste is for example produced from olive oil production, but as discussed above, the method and system may be used for all kinds of organic waste and/or any kind of carbonaceous sludge, mud or other kinds of waste.
- the method and system may for example be used to process wet organic waste from sewage, waste from aquaculture/fish farming, waste from oil or gas refineries or other petroleum installations, etc.
- the step of separating water from organic waste comprises in one embodiment pressing the organic waste in order to expel liquid from the organic waste.
- the pressing of the organic waste can for example be done by passing the organic waste through a screw-press solid separator as mentioned above.
- the step of separating water from organic waste may further comprise removing solid materials and oils from the liquid expelled from the organic waste. This is in one embodiment done by processing the liquid by means of an electro- static coagulation device which comprises ultrasound transducers to separate the solid materials and oils from the liquid and collect the separated solid materials and oils.
- the electrostatic coagulation device may be an electrostatic flocculation device with a separating device.
- the gasification comprises in one embodiment two stages, the first stage comprising pyrolysis of the slurry and solid matter and outputting matter to the second stage, and the second stage comprising adding steam to the output matter.
- the gasification may comprise more than two stages, being a multi stage process, comprising further gasification stages replacing or being added to the two stages described above.
- the gasification will be described as a two-stage process.
- the gasification step may also comprise drying the slurry and solid matter to obtain a material with moisture content between 10% to 15%.
- the dried material can be used in the first stage of the gasification process.
- the system may comprise a dryer.
- the system may also, in some embodiments, comprise a drying step prior to the gasification step, for example vacuum drying, by means of a vacuum dryer or other suitable kind of dryer.
- a drying step prior to the gasification step for example vacuum drying, by means of a vacuum dryer or other suitable kind of dryer.
- the syngas produced in this process is a storable and versatile fuel and can be converted to different liquid fuels.
- the second gasification stage in the process resolves oil and tar problems by carbonizing these together with remaining solids.
- the addition of steam enhances hydrogen production.
- Biochar, the remaining material is an excellent soil enhancer and fertilizer. Heavy metals are bonded with the carbon and become inert, while nutrients like nitrogen, phosphorus, potassium have looser bonds and remain accessible to plants. Biochar is effective for soil moisture retention and carbon replenishment. Alternatively, biochar can also be processed for extraction of carbon black (used in composites and car tyres).
- Figure 1 schematically illustrates an overview of the use of the method for processing organic waste.
- Figure 2 illustrates the first stage of the first step of a method for processing organic waste, for example by using a screw-press separator
- Figure 3 illustrates another stage of the first step of a method for processing organic waste.
- Figure 4 illustrates an example of a gasification process for use as step two in a method for processing organic waste.
- step one is shown in the upper part 10 of the illustration and comprises separating water from the organic waste to produce liquid, slurry and solid matter.
- step two is illustrated in the lower part of the illustration and comprises gasification of the slurry and solid matter. Further details of the two steps will be described below with reference to figures 2-4.
- olive mill waste is used as example of the organic waste material, but as discussed earlier in this document, the method and system can be used to process other kinds of organic waste materials.
- FIG. 2 illustrates an example of one stage, separation, of the first step of a method for processing organic waste, by using a screw-press separator 20.
- the screw-press separator 20 separates water from the organic waste to produce water, slurry and solid matter.
- the organic waste such as Olive Mill Waste is introduced through an inlet 21 to a screen and screw-press chamber 22 where liquor is pressed out and is expelled through liquor exit 21.
- the remaining screen solid material is expelled from solid material exit 23 in the form of a moist paste with a portion of dry matter for example between 25% and 35%.
- the solid material is collected for subsequent feeding to the gasifier’s drier.
- the liquor from liquor exit 21 in figure 2 is rich in colloidal oils, fats and organic compounds.
- This liquor is in this example introduced into an electro-static coagulation device 30 illustrated in figure 3.
- the liquor is first introduced to a coagulation chamber 3 lcomprising ultra-sonic transducers.
- the use of the ultrasonic transducers on the liquor causes the breakup of colloidal structures and excites any suspended solids in the liquor.
- Ionic free radicals emitted to the liquor cause coagulation of the solid material and oils.
- Micro-bubbling ie. the application of micro-bubbles to the liquor, for example caused by an electrolysis process, causes these coagulated solids to float to the surface of the liquor.
- the floated coagulant is then skimmed in skimmer chamber 32.
- the skimmed material can by this process obtain a dry matter content of between 20% and 30%.
- the skimmed material is collected through exit 33 for feeding to the subsequent gasification step.
- the remaining liquid from the skimming chamber is let out through exit 34 to be recycled as water.
- the coagulation process may be performed by an electrolysis process, where a DC charge to the liquor material produces hydroxide free radicals(OH-) in the liquor. These charged particles break the valency bonds of the nutrient salts in the liquor, enabling them to floe with the solid particles.
- the electrolysis process emits ions from the electrode that through their charge attract the suspended material.
- Micro bubbles produced from the electrolysis accelerate the flotation of the floe; or alternatively, micro ballast material can be added to accelerate the sedimentation of the floe through a lamella arrangement.
- step 2 and 3 has both produced dry material, which is used in step two of the method, for gasification using a gasifier 40. This step is illustrated in figure 4.
- the solid material from the separator 20 and coagulation device 30 are fed to a Buffer Storage 41 to allow for non-stop operation of the gasifier.
- the buffer 41 may comprise sensors measuring the amount of material present in the buffer. Sensor signals may be used by a control system to control the feeding from the previous stages to the buffer and for feeding dry matter from the buffer to the subsequent processing stages.
- the dry material is passed to a drier 42 that operates at a temperature of l05°C to l60°C, depending on the nature of the material being dried.
- the drier 42 dries and grinds the material until it has a moisture content of between 10% to 15%.
- the material is in one example ground to a powder. This amount of moisture enables a better cracking of long chain fatty acids and other large hydrocarbon molecules.
- the vacuum drier may be arranged before or after the buffer storage 41.
- Vacuum drying applies a vacuum to the material to decrease the pressure below the vapor pressure of the water. With the help of vacuum pumps, the pressure is reduced around the substance to be dried. This decreases the boiling point of water inside that product and thereby increases the rate of evaporation.
- the gasifier 43 comprises a first chamber 45 and a second chamber 46.
- the first chamber 45 may be provided with a helix transport screw arrangement, or other transport arrangement/device for feeding the dry material to a pyrolysis zone comprising a pyrolysis reactor for gasification of the dry material by means of pyrolysis in the chamber 45.
- the chamber 45 has an under pressure of around -3 mBar and pyrolysis is in this example performed at 600°C.
- the pyrolysis in the first chamber 45 produces gas which subsequently is passed to the second chamber 46 by means of a vacuum generator 47 along with char produced as a bi-product of the pyrolysis process in the first chamber 45.
- steam is added to the mixture of gas and char by means of a heat and steam generator 48, to provide gasification at a high temperature, for example 88°C.
- a heat and steam generator 48 to provide gasification at a high temperature, for example 88°C.
- the addition of steam improves the cracking of vaporized tars and oils that may have been present in the gas and char from the first process stage.
- gas and char entering the second stage may be transported into the gasification zone by a helix function.
- the feeding of the gasification system is such that the amount of air entering the system with the feedstock material is very small.
- the chambers of both the first and second stages are indirectly heated by means of the heat and steam generator 48, thus ensuring that no air (in particular nitrogen) is being introduced to the system.
- the gasification process in the second chamber 46 results in gas and bio-char.
- the bio char is taken to a storage and represents the residue waste which is significantly reduced in volume from the initial waste.
- the gas is quenched and cleaned to separate out tars and oils which may be returned to the second chamber for further processing or transported away for disposal.
- the pulverization technique used in the drier 42 enables stable pyrolysis with variable waste streams and is applicable for heterogenous and difficult waste streams with high gate fees.
- Table 1 shows typical gas production values of the gas exiting from the final gasification stage described above.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020217007436A KR20210106978A (en) | 2018-08-13 | 2019-08-13 | Organic waste treatment method and system |
EP19755575.8A EP3837335A1 (en) | 2018-08-13 | 2019-08-13 | Method and system for processing organic waste |
CN201980053896.0A CN112996885A (en) | 2018-08-13 | 2019-08-13 | Method and system for treating organic waste |
US17/268,165 US20210316345A1 (en) | 2018-08-13 | 2019-08-13 | Method and system for processing organic waste |
BR112021002695-9A BR112021002695A2 (en) | 2018-08-13 | 2019-08-13 | method and system for processing organic waste |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20181068A NO20181068A1 (en) | 2018-08-13 | 2018-08-13 | Method and system for processing organic Waste |
NO20181068 | 2018-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020035492A1 true WO2020035492A1 (en) | 2020-02-20 |
Family
ID=67660536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/071723 WO2020035492A1 (en) | 2018-08-13 | 2019-08-13 | Method and system for processing organic waste |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210316345A1 (en) |
EP (1) | EP3837335A1 (en) |
KR (1) | KR20210106978A (en) |
CN (1) | CN112996885A (en) |
BR (1) | BR112021002695A2 (en) |
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WO (1) | WO2020035492A1 (en) |
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US4251227A (en) * | 1978-08-02 | 1981-02-17 | Othmer Donald F | Method for producing SNG or SYN-gas from wet solid waste and low grade fuels |
US20130081934A1 (en) * | 2011-10-04 | 2013-04-04 | Pulverdryer Usa, Inc. | Systems and methods for converting sewage sludge into a combustible fuel |
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DE2619805A1 (en) * | 1976-05-05 | 1977-11-24 | Metallgesellschaft Ag | PROCESS FOR REDUCING THE BIOLOGICAL OXYGEN REQUIREMENT OF GAS CONDENSATE |
EP2501787B1 (en) * | 2009-11-18 | 2015-10-07 | G4 Insights Inc. | Method for biomass hydrogasification |
JP5793476B2 (en) * | 2012-08-10 | 2015-10-14 | 尚士 本田 | Hydrogen gas production apparatus and hydrogen gas production method |
CA2901767A1 (en) * | 2013-02-26 | 2014-09-04 | G4 Insights Inc. | Method of hydrogasification of biomass to methane with low depositable tars |
CN103396835B (en) * | 2013-07-01 | 2014-12-31 | 华中科技大学 | Method for simultaneously preparing clean gaseous fuel and adsorbent by sludge |
US10576516B2 (en) * | 2015-04-29 | 2020-03-03 | Agatos Green Power Lemuria S.R.L. | Process for treating solid waste containing an organic fraction |
CN106277668B (en) * | 2016-08-29 | 2019-05-28 | 武汉锦星科技有限公司 | A kind of joint disposal method of glass waste |
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- 2019-08-13 WO PCT/EP2019/071723 patent/WO2020035492A1/en active Search and Examination
- 2019-08-13 EP EP19755575.8A patent/EP3837335A1/en not_active Withdrawn
- 2019-08-13 CN CN201980053896.0A patent/CN112996885A/en active Pending
- 2019-08-13 BR BR112021002695-9A patent/BR112021002695A2/en not_active IP Right Cessation
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4251227A (en) * | 1978-08-02 | 1981-02-17 | Othmer Donald F | Method for producing SNG or SYN-gas from wet solid waste and low grade fuels |
US20130081934A1 (en) * | 2011-10-04 | 2013-04-04 | Pulverdryer Usa, Inc. | Systems and methods for converting sewage sludge into a combustible fuel |
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US20210316345A1 (en) | 2021-10-14 |
BR112021002695A2 (en) | 2021-07-20 |
CN112996885A (en) | 2021-06-18 |
KR20210106978A (en) | 2021-08-31 |
EP3837335A1 (en) | 2021-06-23 |
NO20181068A1 (en) | 2020-02-14 |
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